Search

A highly efficient, novel, two‐phase liquid method using phase transfer catalyst is reported to prepare β‐lactam‐conjugated silver nanoparticles as an approach to improve antibacterial activity of β‐lactams. In the method assisted by cetyltrimethylammonium bromide, NaBH4 reduced AgNO3 producing silver NPs that are coated with β‐lactams. The studies conducted provide a generalized method applicable to all types of β‐lactam substrates for capping on silver NPs. The NPs have been characterized by UV–Visible, Fourier transform infrared spectroscopy, x‐ray diffraction, transmission electron microscopy, and dynamic light scattering methods. [ABSTRACT FROM AUTHOR]

This document provides information on the synthesis and characterization of novel β-lactam compounds. The authors conducted studies using different starting materials and reaction conditions, and the results are summarized in tables and schemes. The document also includes detailed experimental procedures and characterization data for the synthesized compounds, such as physical properties and spectroscopic data. The information presented can be useful for researchers studying β-lactam compounds and their properties. The authors acknowledge their affiliations and declare no conflicts of interest. Additional characterization spectra can be found in a separate publication. [Extracted from the article]

This paper demonstrates the use of laser technology in environment scanning for performing indoor positioning and mapping. A 360-degree LiDAR forms the core of the project and the input device used for understanding its surrounding. Hector SLAM and ROS are the two technologies implemented in this project. Hector SLAM where SLAM stands for Simultaneous Mapping and Positioning, is the algorithm used to map the environment and improve navigation accuracy. The aim of this project is to allow an autonomous mobile robot to understand an unknown environment and map its surroundings to perform further tasks using the created map. [ABSTRACT FROM AUTHOR]

A novel, facile, highly efficient and stereoselective protocol for the synthesis of cis-3-allyl-3-phenylsulfinyl-β-lactams and 3-allylidene-β-lactams from cis-3-allyl-3-phenylthio-β-lactams using Selectfluor both as an oxidizing agent and as an eliminating agent with temperature as a control parameter over the reaction outcome has been reported. The methodology is able to conquer the earlier reported shortcomings of long reaction time (24–90 hrs.) and lack of control over product ratio. The synthesized compounds will serve as important synthons for compounds of enhanced biological activity and potency. [ABSTRACT FROM AUTHOR]

The study based on a broad framework with input, throughput, output and feedback first presented by Ludwing Von Bertalanffy. The investigation utilised an evaluative approach. Samples of 50 staff nurses were collected using random sampling by lottery. A structured questionnaire was used for data collection. The overall pre-test knowledge mean score was 14.14±1.629. After administration of the self-instructional module, the post-test mean score increased to 20.56±4.362. The hypothesis H1 expressed that there will be a considerable distinction between pre-test and post-test information scores of nursing officers regarding urinary tract infection. The 't' test was discovered to be more prominent than the table worth. Acquired worth was (10.353), and table worth was (2.045). It showed the effectiveness of the SIM. The study was no significant relationship with demographic variables because the chi-square value was less than the table value. Thus, the H2 has been dismissed. [ABSTRACT FROM AUTHOR]

Hypertension is one of the serious medical condition that has risk factor for developing cardiovascular diseases. Around 33% of individuals having hypertension are undiagnosed and those who are diagnosed are not taking proper treatment. One of the significant reason for hypertension is premature death. In this review, we focused on modern directions of hypertension management with an attention on screening, diagnosis and drug selection. In urban areas of India hypertension incidence is estimated upto 20 to 40% and in rural area it is upto 12 to 17%. Hypertension shows no symptoms and during routine check-ups we can diagnose it. For management of hypertension the guidelines were developed by ministry of health. Various threats were identified regarding management of hypertension. [ABSTRACT FROM AUTHOR]

An operationally simple, highly efficient and stereoselective method for oxidation of trans‐3‐phenylthio‐β‐lactams to trans‐3‐phenylsulfinyl‐β‐lactams is reported. High selectivity and yields were obtained under mild conditions. The probable mechanistic scheme for the formation of oxidized product is proposed. [ABSTRACT FROM AUTHOR]